<div *ngIf="processed.length > 0">
    <h4>Processed Customers</h4>

    <table class="table">
        <thead>
            <tr>
                <td>First Name</td><td>Last Name</td>
            </tr>
        </thead>
        <tbody>
            <tr *ngFor="let customer of processed">
                <td>{{customer.firstName}}</td>
                <td>{{customer.lastName}}</td>
            </tr>
        </tbody>
    </table>

    <button (click)="stopProcessing()">Stop Processing</button>
</div>